This is just a sneak peak of a longer fan film that creators Airsoft GI are planning to release soon, spotted on RPS. It's been a great year for classy fan films, from the Fallout 3 film, Nuka Break, to Beyond Black Mesa and Infectious Designer's recent Half-Life inspired short, Origins. From the looks of the trailer, this Left 4 Dead film could top them all. Look, Zoey's even clutching Bill's discarded beret. Poor Bill :(

It’s official – I can no longer tell the difference between fan film trailers and Hollywood trailers. The extraordinary snippet of film below is a teaser for a soon-to-be-released fan movie of Left 4 Dead. But I challenge you to spot the joins here. I mean, unless they’ve a person stood on someone else’s shoulders, holding a third man upside down by his trouser legs, it seems like they have a crane. Are you still a fan film if you’ve got a crane? Surely you’re just a film at that point? In other words: wow.

Don't you go forgetting that Valve Presents: The Sacrifice And Other Steam-Powered Stories goes on sale later this month.

The book collects Left 4 Dead: the Sacrifice, Team Fortress 2: War!, Mac, Loose Canon, Bidwell's Big Plan, Meet the Director and associated materials; and Portal: Lab Rat into one easy to grasp collection with a forward by Australia's own Saxton Hale.

The 208-page hardcover book will run you $25 and, according to Hale at least, it's meant for children and simpletons.